RAID in Website Hosting
The SSD drives which our cutting-edge cloud Internet hosting platform uses for storage work in RAID-Z. This sort of RAID is developed to work with the ZFS file system that runs on the platform and it works by using the so-called parity disk - a special drive where info kept on the other drives is copied with an extra bit added to it. In case one of the disks fails, your websites will continue working from the other ones and once we replace the faulty one, the info which will be cloned on it will be rebuilt from what is stored on the remaining drives along with the information from the parity disk. This is performed in order to be able to recalculate the bits of every single file properly and to authenticate the integrity of the information duplicated on the new drive. This is another level of security for the content you upload to your website hosting account together with the ZFS file system that compares a unique digital fingerprint for each file on all the hard drives in real time.
RAID in Semi-dedicated Servers
The information uploaded to any semi-dedicated server account is kept on SSD drives that function in RAID-Z. One of the drives in such a setup is used for parity - whenever data is cloned on it, an extra bit is added. In case a disk happens to be defective, it will be taken out of the RAID without disturbing the work of the Internet sites since the data will load from the rest of the drives, and when a new drive is added, the info which will be copied on it will be a combination between the info on the parity disk and data saved on the other hard disks in the RAID. That is done so as to guarantee that the info which is being duplicated is correct, so as soon as the new drive is rebuilt, it could be integrated into the RAID as a production one. This is one more warranty for the integrity of your information as the ZFS file system which runs on our cloud web hosting platform compares a unique checksum of all of the copies of the files on the different drives in order to avoid any chance of silent data corruption.